Molding apparatus



Nnv29,1927. 1,651,215

A. MAS-Tics MOLDING APPARATUS Filed Dec. 8. 1926 2 sheets-sheet 1 We n y n/H ATTORNEY NOV.` 29,

A. MASZTICS MOLDING APPARATUS- Filed Deo. 8, 1926 2 Sheets-Sheet 2 BY Wham/9&4

ATTORNEY CTI Patented Nov. Z9, 1927.

`restas ALEXANDER MASZTICS, F NEW YORK,N. Y.

MoLDIr-'e aiernnerns.

Application filed December S, 192. Serial No. 153,413.

This invention relates to a molding ap- ;aratus.

An obgect of the invention 1s to mold simultaneously a relatively large number ofblocks and the like and give said blocks any desired ornamental surface.

A further object is to provide an improved apparatus inv vvliicliwvet blocks are dried or set in Contact with'a facing or ornamental material which adheres thereto during the setting operation,V

A further object is to provide an apparatus which enables the quick formation of a relatively large number of small'building blocks, which can be easily and conveniently used in building structures andwhich `will be relatively light so that they may be easily handled'by the workmenand broken to fit odd places. v

IVith these and other objects in View, the invention consists in certain novel features of construction and certain novel steps in the process7 all of which will be more fully hereinafter described and pointed out in the claims. Y

In the accompanying drawings- Figure 1 is a plan view, showing myv improved mold or apparatus with the parts assembled therein; Y

Figure' Q'is a view similar Yto Figure l', showing the parts inA posit-ion after the complete operation of moldingis carried out;

Figurey 3 is a view in vertical section `on the line 3 3 of Figure 2, the covering frame being shown in dotted'lines;

Figure't is a view similar to Figure but showing the molding apparatuscomplete and in inverted position; I' j Figure 5 is a view similar to Figure 4, showing the molded blocks completed and drying;V

Figure 6 is a perspective view of the mold covering frame; Figure 7 is a perspective view of one of the mold elements;

Figure 8 is a perspective view of one of the core elements; i

Figure 9 is a perspective view of one of the spacers. y

I shall first describe the apparatus I employ and later the process' as it is carried out step by step.l Y v l i I employ a mold box 1 with a top 2 and bottom 2 adapted to t thereon, said box as a whole coupled vby rods 3 with nuts 1 on their respective ends to clamp the assemblage together. The bottom Qof the boX 1 carries a.r plurality of'core members 5 which are hollow and preferably tapering and of relatively thin metal, and adapted to receive sand therein, as indicated at '6. rllhese core members 5 are formed with studs 7 which project through the bottom'Q of the boli; 1 and lare securely clamped'by nuts 8 on the ends of the studs. A` i f In connection withthese coremembers 5 l employ mold elements9 which are of relatively thin metal of preferably larger diameter than the core members 5,`open at both ends and preferably angular in form, the core men'ibers 5 being circular in vvcross section.

` It is to be understood that my mold members or elements 9 are preferably longer than thecore members 5 and receive the corememf tween the core member andthe mold member or element 9; These assemblages of core members 5 and elements 9 ymay vbe provided in any' desired number and arranged in any desired manner within the ymold' box, but they are preferablyA arranged rin parallel lines, equally spaced apart, Vand are adapted to be held in this relationship by spacers 10.

Most of these spacers are of general cross shape in cross section so that they receive the corners of the'mold members 9, andothers of the spacers at the edges-of the mold box are made of Ygeneral T-sliape lor angular1 shape'in cross section so asto lit within the box and maintain the mold members 9 properly spaced apart. y

Av covering frame 11 is adapted to fit on top 'of theseries of moldmembers 9, having openings 12 therein to register withthe interior of the mold members v9 and covering the spaces between said mold members 9.

In operation, the mold box is in the posi- .tion shown in Figur-e 1. The core members 5 being first filled with sand are located centrally in the moldA members 9 and the latter are held apart by the spacers 10. Y

The first step in the operation of molding is to placethe frame 11 over the assemblage indicated in Figure 1 and then pour a cementitious materia-liuto all of the mold members 9 around and over the core members 5 to form blocks 13. vThe next step is to remove the covering frame 11v and all of the spacers 10 and then fill in the. entireV mold box around the outside of all of the moldelements 9 with fine sand, pulverized marble,

bottom of the mold box is lifted off, leaving the box supported on the normal top with the parts in the position shown in Figure .5. However, this Figure sh'oivs the position of the parts after the mold members or elements 9 are drawn vertically off of the blocks, as this is doneras soon as the mold as a Whole is inverted and before the blocks are set. When these mold members or elements 9 are drawn off of the blocks, the surfacing material which is disposed around all of the blocks Will come in contact lwith the blocks While they are Wet and Will adhere to the surface of the blocks so that as the blocks become set they will have imparted theretoan ornamental surface which may be of pulverized marble or any other suitable material.

It is to be .understood that when the core members are removed, the sand Which is enclosed therein will flow out and provide a sand core ivithin the interior of the blocks, and when the elements 9 are Withdrawn the surfacing material vWill provide a support for the outer portions of the blocks so that the latter may become -set While held inten nally and externally bythe sand and surfacing' material, respectively, as indicated clearly in Figure 5. Y

The box l is of course made in sections and separable to vfacilitate the removal of the molded blocks after they are set, and by means of this process a large number of relatively'small blocks can be easily, quicklyv and etciently made by any one of average in-` telligence, and any. surface ornamentation given to the blocks by direct contact of said surfacing' material with the wet blocks While they are Ydrying or set-ting. As the blocks are p removed the surfacing,r material is shaken ofi' and the blocks may be finished in any manner desired or used as they come from the mold. y l

,l of course donot Wish to limit myself to the shape, proportions or precise arrangement of parts but desire tocover my invention broadly as set forth in the appended claims.

I claim: l

1. A molding apparatus, includinga box, tapering hollow core members secured to one member of the box and adapted to receive sand therein, removable open-ended mold members enclosing'the core members and spacedtherefron'i and adapted to receive cementitious material therein, spacers adapted to hold the mold members in spaced relationship, and a frame adapted to cover the spaces between the mold members and provide openings into the mold members for the pouring of cementitious material into the mold members. l

2. A ,molding` apparatus, including a box, plurality of open-ended mold members loI cated in the box, spacing devices between the mold members and the mold members and i the box holding said mold members uniformly arranged in the box, Vand a frame adapted to cover the spaces between the mold members and having openings therein registering' Witn the open-ends of the mold, mem'- bers forl the pouring of material into the mold members.

' e. A molding apparatus, including a box,

a plurality of open-ended moldv members located in the box, spacing devices between the mold members and the mold members Vand the box holding` said mold members uniformly arranged in the box, a frame adapted to cover' the spaces between the mold memf iers and having' openings therein registering with the open ends ofthe mold members for the pouring of material into the mold members,open'ended hollow core members positioned Within' the mold members, and a box member which all of said core members are secured. y Y

' ALEXANDER MASZTICS, 

